Jakub Suder's blog on Cocoa and web development

A guide to NSButton styles

Categories: Cocoa 3 comments

I don’t know about you, but I never know which NSButton to pick from the Interface Builder library panel. When you start looking for a button there, this is what you see:

13 similar buttons in 3 rows

13 different buttons, all described with the same meaningless description:

The NSButton class is a subclass of NSControl that intercepts mouse-down events and sends an action message to a target object when it’s clicked or pressed.

Each of them looks slightly different, but which of these are you supposed to use in what context?

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Backbone and Ember

Categories: Frontend, Javascript 0 comments

I’ve read a post comparing Backbone to AngularJS recently, and another that ended with similar conclusions about Backbone, and since I’ve been working with Backbone for the last year or so, I thought it would be a good idea to share my own experiences with it.

In 2012 I’ve been working with a few other developers at Lunar Logic on a new webapp. We’ve decided from the beginning to build it as a single page application, based on an API that was being developed for an existing mobile app. We have considered EmberJS for a moment, but we’ve decided it probably wasn’t stable enough at that point, so we went with Backbone instead.

Looking back I think we made the right choice back then – EmberJS has changed a lot since then (some important parts were still being changed a couple of months ago in 1.0-pre versions), and they still haven’t released a final 1.0, though it seems it’s getting close to that. I’m also glad I had a chance to learn Backbone and get to see its pros and cons. Still, if I was starting the same project right now, I’d probably choose Ember instead.

So what have I learned about Backbone during this year?

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What's new in ObjectiveC

Categories: Cocoa 0 comments

This post is mostly based on a presentation I’ve done on the last CocoaHeads meeting in Kraków. (If you’re a Cocoa developer and you’re in Kraków on a 2nd Thursday of a month, come say hi!)

Thea idea was basically to collect all the things that have changed in ObjC in the recent years in one place. There were quite a few of these (which is a great thing!) and it’s sometimes hard to remember all of them, especially if you’re trying to update the code of an older project to newer coding style. Hopefully you will also find something here that you didn’t know about before.

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Pick holes in your Gemfiles

Categories: Ruby/Rails 3 comments

The beginning of 2013 was a really bad time for the Ruby community. In the first few weeks of the year a few separate security issues were found that made everyone run to their SSH consoles to update their Rails apps. Rails itself had to be updated 4 times so far because of this, and even the rubygems.org gem repository has been hacked.

And we aren’t talking about a minor “someone with enough luck and determination can use this for some malicious purpose one day” kind of issue; some of these were the nastiest security holes we’ve seen in years. Check out this article by Patrick McKenzie about what can happen (or rather: will happen) because of these vulnerabilities.

The worst part: it’s probably not the end. The general nature of these bugs – see another article by Aaron Paterson analyzing all the ways in which you can do harm to a Ruby app – means that it’s quite likely that there’s more where that came from.

Now, I don’t know about you, but for me it’s starting to get hard to keep track of all these issues. I know Rails should be updated, but which version was that, 3.2.10 or 3.2.11? Is 2.3.17 OK or was there something newer? And what else was there, json, rack, or was it rake?

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Extending asset pipeline with custom preprocessors

Categories: Javascript, Ruby/Rails 3 comments

If you’ve read the Rails 3.1 asset pipeline docs, you’re probably aware that you can add preprocessors to your asset files by appending extra file extensions. For example, to write your JS files in CoffeeScript you need to add the suffix .coffee, and if you also want to pass something from Rails to those files, like paths to image files, you also need to add the .erb suffix. All the extensions are added together, so you end up with e.g. profile.js.coffee.erb (it’s simpler with stylesheets, because by adding a Sass preprocessor you get a bunch of asset path helpers for free).

What the docs don’t tell you is that Sprockets can also be configured to include preprocessors implicitly based on a content type.

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Notes from “The Passionate Programmer”

Categories: Programming 0 comments

Last month I read a great book from the Pragmatic Bookshelf“The Passionate Programmer”, another book in the not-directly-technical series of their books started with the original “Pragmatic Programmer”, which deal not as much with specific technologies and languages, but rather with programming and programmer’s life in general.

The book, written by Chad Fowler, a well-known Ruby expert, is a second edition of a book that was previously titled “My Job Went to India: 52 Ways To Save Your Job”. The first edition’s main idea was helping US developers find a new place for themselves in the globalized world where more and more projects are outsourced to some remote countries. The second edition is more of a redesign than an update, and instead of showing you how to be good enough not to be fired, its aim is to show you how to be awesome: how to become an expert in your field, a well-known, respected developer, and how to have fun on the way.

I’ve found a lot of great ideas and made tons of notes, but if I shared everything that would be definitely TLDR, so instead I’ll try to sum it up in a few points which were repeated in various forms throughout the book. (If some of these seem too obvious to you, I’m pretty sure you’ll find some other tips that will make more sense for you in the book.)

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How to fix NTFS support on OSX Lion

Categories: Mac 13 comments

After I upgraded my Mac to Lion this month, I’ve noticed that my NTFS drives stopped working. I’m using NTFS on my Windows XP partition and on a WD external drive. I’ve previously used MacFUSE and NTFS-3G, which is probably the most commonly used solution for people who want full NTFS access on OSX (as you probably know, by default OSX only provides read only support). However, that doesn’t work anymore on Lion. The problem is that MacFUSE is not maintained anymore and doesn’t work with a 64-bit kernel which is used by default in Lion.

First Google results usually point you to commercial solutions, but I’m not willing to pay for something as basic as filesystem support, which, frankly, Apple should have provided themselves long time ago. If you want to avoid paying, the right way is to replace latest stable MacFUSE with something that works on Lion.

Based on a few blog posts and comments I managed to find a way that worked for me, so I thought I’d put it all here in one place for others. The fastest way IMHO is to install packages from the command line, because – at least in case of NTFS-3G – it’s hard to tell from the website which version is the right one. I’m going to assume you haven’t lived under a rock for the last couple of years and you’re using Homebrew, not MacPorts. It’s not completely automatic – you’ll need to do a few things in the terminal, but it shouldn’t take more than a few minutes in total.

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